The registered nurse is discussing care of an infant diagnosed with a patent ductus arteriosus (PDA) with a nursing student. The registered nurse determines that the nursing student needs further teaching regarding a PDA when the student states that which circulatory change is a characteristic of this disorder?
This shunting allows oxygenated and unoxygenated blood to mix.
Blood is shunted to the right side of the heart.
This shunting results in increased pulmonary blood flow.
Blood is shunted to the left side of the heart.
The Correct Answer is D
A. "This shunting allows oxygenated and unoxygenated blood to mix."
Explanation: This statement is correct. In PDA, the shunting of blood between the aorta and pulmonary artery allows oxygenated and unoxygenated blood to mix, leading to decreased oxygen saturation in the systemic circulation.
B. "Blood is shunted to the right side of the heart."
Explanation: This statement is correct. In PDA, blood is shunted from the left side of the heart (aorta) to the right side of the heart (pulmonary artery).
C. "This shunting results in increased pulmonary blood flow."
Explanation: This statement is correct. PDA leads to increased pulmonary blood flow as a result of the shunting of blood from the aorta to the pulmonary artery.
D. "Blood is shunted to the left side of the heart."
Explanation:
A patent ductus arteriosus (PDA) is a congenital heart defect where the ductus arteriosus, a fetal blood vessel that normally closes shortly after birth, remains open. In PDA, blood is shunted from the aorta (left side of the heart) to the pulmonary artery (right side of the heart), resulting in increased pulmonary blood flow. Therefore, the correct statement is that "Blood is shunted to the right side of the heart."
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Rye toast
Explanation: Rye contains gluten, so it is not appropriate for individuals with celiac disease. Rye, like wheat and barley, should be avoided.
B. Rice
Explanation:
Celiac disease is a condition characterized by an immune reaction to gluten, a protein found in wheat, barley, and rye. Therefore, individuals with celiac disease need to avoid gluten-containing foods. Rice is naturally gluten-free, making it a suitable and safe option for individuals with celiac disease.
C. Wheat bread
Explanation: Wheat contains gluten, and products made from wheat, including wheat bread, should be strictly avoided by individuals with celiac disease.
D. Oatmeal
Explanation: Oats themselves are gluten-free, but they are often contaminated with gluten during processing. Some individuals with celiac disease can tolerate pure, uncontaminated oats, while others may need to avoid oats altogether. It is important to choose certified gluten-free oats if including them in the diet.
Correct Answer is B
Explanation
A. Rye toast
Explanation: Rye contains gluten, so it is not suitable for individuals with celiac disease. It should be avoided in a gluten-free diet.
B. Rice
Explanation:
Celiac disease is a condition characterized by an immune reaction to gluten, a protein found in wheat, barley, and rye. Individuals with celiac disease must follow a gluten-free diet to manage the condition. Rice is a gluten-free grain and is safe for individuals with celiac disease to include in their diet.
C. Wheat bread
Explanation: Wheat contains gluten, and products made from wheat, such as wheat bread, should be avoided in a gluten-free diet for individuals with celiac disease.
D. Oatmeal
Explanation: Oats themselves are gluten-free, but cross-contamination can occur during processing. Some individuals with celiac disease can tolerate pure, uncontaminated oats, but it's essential to ensure that the oats are labeled gluten-free. Regular oats may be cross-contaminated with gluten-containing grains during processing.
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